Limitations and disadvantages of radiocarbon dating
For example: C has long been used as a tracer for chemical processes and pathways, the amount of tracer required using decay counting can be hazardous to the researchers, pose contamination problems or, in some cases, itself influence the process being studied.
Examples of such minerals include lepidolite, potassium-feldspar, and late-formed muscovite or biotite from pegmatites (preferably of older than 60 Ma).
Gamma rays successfully kill microbes that cause food to decay.
So food treated with this radiation have a longer shelf life.
As such, K–Ca dating is effective only in circumstances where K/Ca Examples of such minerals include lepidolite, potassium-feldspar, and late-formed muscovite or biotite from pegmatites (preferably older than 60 Ma).
This method is also useful for zircon-poor, felsic-to-intermediate igneous rocks, various metamorphic rocks, and evaporite minerals (i.e. As such, this dating method does not yield satisfactory results unless performed with extremely high precision.